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» Approximation algorithms for aligning points
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JMM2
2007
96views more  JMM2 2007»
14 years 9 months ago
A Framework for Linear Transform Approximation Using Orthogonal Basis Projection
—This paper aims to develop a novel framework to systematically trade-off computational complexity with output distortion in linear multimedia transforms, in an optimal manner. T...
Yinpeng Chen, Hari Sundaram
ICPR
2000
IEEE
15 years 2 months ago
Modeling Range Images with Bounded Error Triangular Meshes without Optimization
This paper presents a new technique for approximating range images by means of adaptive triangular meshes with a bounded approximation error and without applying optimization. Thi...
Angel Domingo Sappa, Miguel Angel García
CIKM
1997
Springer
15 years 2 months ago
Block Addressing Indices for Approximate Text Retrieval
Although the issue of approximate text retrieval is gaining importance in the last years, it is currently addressed by only a few indexing schemes. To reduce space requirements, t...
Ricardo A. Baeza-Yates, Gonzalo Navarro
PG
2002
IEEE
15 years 2 months ago
Approximation with Active B-Spline Curves and Surfaces
An active contour model for parametric curve and surface approximation is presented. The active curve or surface adapts to the model shape to be approximated in an optimization al...
Helmut Pottmann, Stefan Leopoldseder, Michael Hofe...
SIGMOD
1998
ACM
121views Database» more  SIGMOD 1998»
15 years 2 months ago
New Sampling-Based Summary Statistics for Improving Approximate Query Answers
In large data recording and warehousing environments, it is often advantageous to provide fast, approximate answers to queries, whenever possible. Before DBMSs providing highly-ac...
Phillip B. Gibbons, Yossi Matias